View Compilation Error

0_0_25488965_19325.cpp: In function 'int check()':
0_0_25488965_19325.cpp:54:4: error: 'cnt' was not declared in this scope
    cnt[x][y] = 0;
    ^
0_0_25488965_19325.cpp:62:9: error: 'cnt' was not declared in this scope
       ++cnt[min(r, x)][max(r, x)];
         ^